Burner



Feb. 27, 1923.

' 1,447,095. w. MCARTHUVR.

BURNER.

FILED DEC, 21, 1920. a2 SHEETS-SHEET).

@nue/Moz WMAz-llz un W. IVICARTHUR.

BURNER.

FILED Dsc. 21. 1920.

2 SHEETS-SHEET 2.

Patented Feb. 27, lQZ".

WILLIAM l'vICARTI-IUR, OF TENINO, WASHINGTON.

sonnen.

Application filed Decembor`v27,`1920. Serial No. 433,338.

To all lwhom t muy concern:

Be itknown that l, lVILLL-iai MCARTHUR, a. citizen of t-he UnitedStates, residing'at T enino, in the county ot Thurston and State ofllvashington. have invented a new and useful Burner, ot' which theVfollowing is a speciiication.

This invention signed to use, as a fuel, a mixture of pulverized coal,peat or other fuel dust With alcohol or any other light oil.

One of the objects of the invention is to provide simple and efficientmeans for et-` tecting a proper mixture ot' the 'fuel ingredients beforethey are directed to the point or consumption, the mixing of the partsbeing controllable readily.

A further object is to provide apparatus of this character which can bemade in various sizes and shapes so as to adapt the same for use withlarge or small boilers, with stoves, etc.

lith the foregoing and other objects in vienwhich will appear as thedescription proceeds, the invention resides in the combination andarrangement of parts and in the details of construction hereinafterdescribed and claimed. it being understood that, within the scope otwhat is claimed, changes in the precise embodiment of the inventionshown can be made Without departing from the spirit of the invention.

In the accompanying drawings the preferred' forni ot' the .invent-ionhas been shown.

In said drawings- Figure 1 is a view partly in front elevation andpartly in section o'f the burner and the fuel mixing apparatus combinedtherewith. i

Figure 2 is a plan view.

Figure 3 is an enlarged section on line 3 3. Figure 1.

Referring to the figures by characters of reference 1 designates an oilcontainer which can be of any desired configuration. As shown in Figure2 this container is semicyliiulrical but it will be obvious that thesame can be made in the forni ot three quarters oi a cylinder or can beotherwise shaped so as to properly fit upon or against av supportingstructure. i.\,rranged within this container is a substantially conicalholder 2 for finely connninuted fuel. this holder pretura-bly extendingJfrom the top relates to burners cle-- to the bottoni of the container1v and have f ing its-small lovverend opening into an outlet tube 3-extendingbelow the bottom of the container 1. The top of -the holder, 2can be provided with a removable cover 4: and a suit-able baileorspreader' can be supported in thelower'portion of the holder andvspacedl 'from the outlet tube by supporting legs 6.

'f Extending Afrom the outlet tube 3 yisl a the bottom ofthe containerlinto the topL of the nozzle 2 andvis provided with a valve 11 wherebythe flow ot oil from the container to the nozzle cany be controlled.@peiling into the closedl end of the tube 8 is a blast pipe 12 whichterminates between said end and the nipple 7 and communicates with atank 13 or the like for supplying air under pressure. used as shown apressure gage 14 may be mounted thereon. A valve 15 is provided forcontrolling the flow of air through the pipe 12.

A valve 16 is mounted in the tube 3 and by means thereof the dischargeof the comininuted material from the holder 2 can be controlled. An oilgage for indicating pressure can be connected to the lower portion ofthe container 1 as shown at 17. An oil supply pipe 18 opens into theupper portion of the container and has a controlling valve 19. Apressure gage 20 is oarried'by this pipe 18 for indicating air pressure.

In using the apparatus alcohol or other light oil is admitted under airpressure to the container 1 through the pipe 18. The pulverized coal orother combustible material is placed in the holder 2. The 'valve 15 isopened so that a jet of air will bedischarged longitudinally Within thereceiving tube 8 and across the lower end of the nipple 7 `into thenozzle 9. Valves 16 and 11 are then opened Vdesired distances so as tosecure the proper mixture of fuel. The dust discharged into the tube 8will thus be blown into and through the nozzle Where it will be It atank isl mixed with the oil discharged into the nozzle, it being,Tunderstood that the air blast will break up the oil into a ne sprayvwhich ivill be inixed thoroughly With the fuel. Thus a highl)vCombustible fuel inixture will be delivered from the nozzle.

The baille serves to prevent the powdered fuel 'from choking the outlettube lt will be seen that the apparatus is very simple. inexpensive andefficientand ean be .applied readily to stoves and the like.

lVhat is claimed is:

l. In an apparatus of the class described, a liquid fuel tank, aninverted cone-shaped powdered fuel compartment located in said tank withan aperture in its apex openingT through the bottom of the tank, saidtank being in longitudinal alineinent and sup ported beloiv the bottomof the tank.

ln an apparatus of the class described, a liquid fuel tank having aninverted cone- .shaped holder arranged therein and extendinn' freni thetop to the bottoni of the Itank with its apex provided With an openingextending' through said tank bottoni, an outlet tube leading' from saidopening below the bottoni et tric tank, a removable cover at the upperend of said holder, a nipple leadinn` from said tube, a reeeivinfitubearranged in a plane at right angles to said nipple and through one sideWall of Whieh said nipple extends,y said receiving tube being open `atone end and closed at the other, a tapered nozzle extending from theopen end of said tube beyond the Wall of the tank`4 a pipe eenneetingthe tank with said nozzle in advance of the conneetion of said receivingtube7 and a, blast pipe openinginto the closed end of the receiving;tube and terminatinff between said end and said nipple,

In testimonyv that I claim the foregoing as inv oivn', l have heretoaiiixed iny signature in the presence of a. Witness.

lllituess P. C. lxnsn.

